	body{
			background-size:cover;
			font-size: 16px;
        background-image:url(../img/497005710.jpeg);
			
	}
	.form{
			background: rgba(255,255,255,0.2);
			width:1200px;
			height:850px;
			margin:100px auto;
			opacity:0.7;
	}
    .talk_con{
         width:1000px;
         height:800px;
         border:1px solid #666;
         margin:50px auto 0;
         background:#f9f9f9;
     }
     .talk_show{
         width:980px;
         height:420px;
         border:1px solid #666;
         background:#fff;
         margin:10px auto 0;
         overflow:auto;
     }
     
     .atalk{
        margin:10px; 
     }
     .atalk span{
         display:inline-block;
         background:#0181cc;
         border-radius:10px;
         color:#fff;
         padding:5px 10px;
     }
      .btalk{
         margin:10px;
         text-align:right;
     }
     .btalk span{
         display:inline-block;
         background:#ef8201;
         border-radius:10px;
         color:#fff;
         padding:5px 10px;
     }
     .ctalk{
         margin:10px;
         text-align:center;
     }
     .divImg{
         max-height:200px; max-width:200px;
         width: expression(this.width > 200 && this.width > this.height ? 200 : auto);
         height: expression(this.height > 200 ? 200 : auto);
     }
